Thirds to james c



(No'Model.)

P; W. TUBRK, Jr.

FAN.

v "rf Ajorma N. PEYERS. Molllbcgrlphor. Washihgmn, DIC

UNITED STATES PATENT OFFICE.

FREDERICK WV. TUERK, JR., OF SYRACUSE, NEV YORK, ASSIGNOR OF TYO- THIRDS TO JAMES C. HUNTER, OE SAME PLACE, AND JOHN HUNTER, OF

STERLING VALLEY, NEY YORK.

FAN.

SPIE!CIFICATION` forming part of Letters Patent N o. 423,839, dated March 18, 1890.

Application filed November 2, 1889. Serial No. 329,006. (No model.)

To @ZZ whom it' may concern.-

Be it known that 1I, FREDERICK W. TUERK,

J r., of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Fans, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to an improvement in 1o fans, and has for its object the production of a simple and effective device whereby the blades or vanes of the fans are readily turned so as to displace more or less air or to throw the same upward or downward, as desired. My invention consists in the detail construction an d arrangement of the parts, all as hereinafter more particularly described, and pointed out in the claims.

In describing this invention reference is zo had to the accompanying drawings, forming a part of the specification, in which like letters indicate corresponding parts in all the views.

Figure l is au elevation representing a 2 5 pendent fan of my improved construction,

the supporting-bracket for the fan-blades being` shown somewhat in perspective. Eig. 2 represents an enlarged rlcvation taken at right angles to Fig.' l, and illustrating particularly the supportingbracket and the relative arrangement of my improved mechanism for axially rotating the fan-blades. Fig. 3 represents an enlarged view, partly in section, of the parts as illustrated in Fig. 2; and 3 5 Fig. et represents a horizontal sectional view taken on line Fig. 2, further illustrating the arrangement and construction of the parts shown in said iigure.

This invention relates to the saine class of fans illustrated and described in my pending application, Serial No. 302,396, and it sets forth particularly a different means for axially rotating the fan-blades, whereby the angle thereof maybe varied atwill and the agitation of the air increased or decreased by said vas riation without adjustment of the speed of rotation of the fan.

' A represents a bracket, which supports the shaft B for rotating the fan, and is pendent 5o from the ceiling C, or other suitable support.

This bracket A may be of any desired form and construction, and is here illustrated as' provided with an upper journal a and a lower journal ft, between which on the shaft B is secured a suitable wheel or pulley B to which 5 5 power is transmitted by any desired belting or other transmitting mechanism.

Secured at the lower extremity of the shaft B is the supporting-frame D for the fan-blades F. This frame D, as best illustrated in Figs. 6o 2, 3, and e, is composed of the central or main portion D preferably of greater Width at its central part than at the top and bottom, and provided with the upper hub d, in which is secured the lower extremity of the shaft B, and the lower hub CZ, in which is guided the mechanism for axially revolving the fanblad es. The fan-blades F are arranged on either side of said central port-ion D and on either side of its center, so that a space in- 7o tervenes between their adjacent extremities.

As illustrated, the fan-blades consist of the operating or body portion f, which is preferably formed of wood, paper, or other light material, and the shank f secured by a set-screw 7 5 f2, or other suitable device, to a spindle G,

journaled in bearings D2, provided on the opposite sides of the frame D. Extending from the bearings D2, on either side thereof, are the short bracing-arms D3 and the long bracing- 8o arms D4, the latter being elevated upward, rounded downward, and then deflected inwardly and connected to the main body D.

Formed or provided upon the inner extremit-ies of the spindles G are suitably-shaped S 5 studs or projections g, which are illustrated as a short piece of wire passed through an opening in the inner ends of said spindles. These spindles are retained in position by means of the shank f of the fan-blade F, and 9o the washer or sleeve g interposed between the inner bearing-face of the journal-bearing D2 and the stud g.

By reference to the drawings it will be readily perceived that the elevated bracing bar or portion l)4 is arranged directly opposite to the bearing D2 on the opposite side of the frame D, and by this construction of the parts I am enabled to first provide the spindle .G with its projection or lug, and then force the roo same to its desired position in the frame. If this arm were not elevated, it will be readily understood that I would necessarily be obliged to first force said spindle to its operative position and to then secure the projection g thereto.

Sliding within the frame D, and engaging the lugs or projections g, is the block or head H, which may also be of suitable form and construction. The preferable manner of guiding said sliding block or head consists in providing the same with the depending rod h, guided in the lower hub d of the frame D. At the upper extremity of said block Il are the projecting ears H', in which are journaled the separate pins I, revoluble independently of each other. Provided in the adjacent extremities of said pins or studs are suitable openings, with which the projections or lugs g are readily engaged. Loosely mounted upon the lower extremity of the depending-rod h is a sleeve J, (here shown as an ordinary oil-cup,) provided with an upwardly-extending hub j.

When the several parts of my invention have been operatively assembled, and motion is communicated to the wheel B', it will be readily understood that the rotation of the frame kD will revolve the fau-blades F, and that the aix` will be thrown upward. or downward and with a greater or less degree of force, according to the degree of altitude of said fan-blades.

vWhen desired to adj ust the fan-blades and the consequent force or direction of the agitated air, the sleeve or oil-cup J is engaged by the hand, and when the shaft B is revolved in the direction indicated by the arrow said oilcup is forced downward to throw the air downward, and upward to throw the air upward. This operation or axial rotation of the fan-blades is a very essential feature, rendering the fan much more desirable and enabling the operator to readily adjust the degree of force or direction of the agitated air without ehangingthe actuating mechanism of the fan, which in most eases is an extremely difficult operation. It will readily be understood that to whatever position the fan-blades are adjusted the arrangement of the `axially-rotating mechanism is such that the strain upon the fan-blades is not exerted in a direction to change the adjusted position thereof.

In order to prevent an undue elevation of the sleeve J and a consequent disarrangement of the parts, the upwardly-projecting hubj contacts with 'the lower face of the hub d', and thus acts as a stop for the upward movement of said sleeve.

The operation of my invention will be readily understood from the foregoing, and it will be noticed that the parts are simple both in construction and operation, are readily assembled, and that the peculiar construction of the frame aifords great rigidity and prevents springing of the spindles for the fan blades, and is also neat and attractive in appearance, being both useful and ornamental. It will, however, be understood that the parts might be somewhat different from the described construction; hence I do not limit myself to their precise form and arrangement.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a fan, the combination of a supporting-frame, fan-blades mounted onl opposite sides of said frame, a projection. or lug secured to the adjacent extremities of said fanblades, a sliding block or head, and independently-moving supports carried` by said head and engaged with said lugs for axially rot-ating the fan-blades, substantially as described.

2. In a fan, the combination of a supportingfra1ne, fan-blades mounted on opposite sides of said frame, a projection or lug secured to the adjacent extremities of said fanblades, a sliding block or head guided in said frame, independently-moving supports carried by said block for engaging said projections and rotating the fan-blades, afdepending rod extending from said head or block, a loose sleeve mounted on said rod, and ashoulder for abutting against said supporting frame, substantially as specified.

3. In a fan, the combination of a supporting-frame, fan-blades mounted on opposite sides of said frame, a projection or lug secured to the adjacent extremities of said fan blades, a sliding block or head engaging a IOO guideway provided in said frame, upwardlyextending projections provided on said sliding block or head, and the pins or supports II, journaled in the separate projections of the sliding block or head and engaging the projections or lugs upon the fan-blades, substantially as described.

In testimony whereof I have hereunto signed my name, in the presence of two attesting witnesses, at Syracuse,in the county of Onondaga, in the State of New York, this 28th day of October, 1889.

FREDERICK W. TUERK, JR.

Witnesses:

CLARK H. NonroN, A. E. PARSONS.

IIO 

